noYesYES yes they all died when the halo array was fired
The didact activated the halo array on the Ark so he was safe even more he shuts away his armor in halo legends origine AFTER the halos are fired 343 guilty sparks sais that when he finally informs the didact that halo is destroyed hed be angry.
thats enough for the didact.
do any of you know how big the Ark is its bigger then 4 earths combined. there probably was 50,000,000,000 forerunners on it.